IT1017633B - AUTOMATIC SEQUENTIAL HYDRAULIC CONTROL DEVICE - Google Patents
AUTOMATIC SEQUENTIAL HYDRAULIC CONTROL DEVICEInfo
- Publication number
- IT1017633B IT1017633B IT23308/74A IT2330874A IT1017633B IT 1017633 B IT1017633 B IT 1017633B IT 23308/74 A IT23308/74 A IT 23308/74A IT 2330874 A IT2330874 A IT 2330874A IT 1017633 B IT1017633 B IT 1017633B
- Authority
- IT
- Italy
- Prior art keywords
- control device
- hydraulic control
- automatic sequential
- sequential hydraulic
- automatic
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0202—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being electric
- F16H61/0251—Elements specially adapted for electric control units, e.g. valves for converting electrical signals to fluid signals
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0262—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic
- F16H61/0265—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being hydraulic for gearshift control, e.g. control functions for performing shifting or generation of shift signals
- F16H61/0267—Layout of hydraulic control circuits, e.g. arrangement of valves
- F16H61/0269—Layout of hydraulic control circuits, e.g. arrangement of valves characterised by low integration or small number of valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H61/00—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing
- F16H61/02—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used
- F16H61/0293—Control functions within control units of change-speed- or reversing-gearings for conveying rotary motion ; Control of exclusively fluid gearing, friction gearing, gearings with endless flexible members or other particular types of gearing characterised by the signals used the signals being purely mechanical
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T74/00—Machine element or mechanism
- Y10T74/19—Gearing
- Y10T74/19219—Interchangeably locked
- Y10T74/19251—Control mechanism
- Y10T74/19256—Automatic
- Y10T74/1926—Speed responsive
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Transmission Device (AREA)
- Control Of Fluid Pressure (AREA)
- Control Of Fluid Gearings (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7319544A FR2231871B1 (en) | 1973-05-29 | 1973-05-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1017633B true IT1017633B (en) | 1977-08-10 |
Family
ID=9120202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT23308/74A IT1017633B (en) | 1973-05-29 | 1974-05-28 | AUTOMATIC SEQUENTIAL HYDRAULIC CONTROL DEVICE |
Country Status (6)
Country | Link |
---|---|
US (1) | US3976159A (en) |
JP (1) | JPS50132395A (en) |
DE (1) | DE2426148A1 (en) |
FR (1) | FR2231871B1 (en) |
GB (1) | GB1467328A (en) |
IT (1) | IT1017633B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2050646B (en) * | 1979-06-15 | 1983-04-13 | Sperry Rand Corp | Hydraulic actuator controls |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1580549A1 (en) * | 1966-08-02 | 1970-12-23 | Porsche Kg | Electric switching device for change gears of vehicles, especially motor vehicles |
JPS4820348B1 (en) * | 1968-10-30 | 1973-06-20 | ||
DE1917291A1 (en) * | 1969-04-03 | 1970-10-15 | Daimler Benz Ag | Pressure control device for hydraulically switched automatic transmissions, especially for motor vehicles |
US3621735A (en) * | 1969-12-15 | 1971-11-23 | Ford Motor Co | Electronically operated hydraulic controls |
JPS4838577B1 (en) * | 1970-12-01 | 1973-11-19 | ||
JPS4838581B1 (en) * | 1970-12-27 | 1973-11-19 | ||
US3768338A (en) * | 1971-12-27 | 1973-10-30 | Ford Motor Co | Coasting downshift control valve for an automatic power transmission control valve circuit |
-
1973
- 1973-05-29 FR FR7319544A patent/FR2231871B1/fr not_active Expired
-
1974
- 1974-05-28 IT IT23308/74A patent/IT1017633B/en active
- 1974-05-28 GB GB2365674A patent/GB1467328A/en not_active Expired
- 1974-05-29 JP JP49060696A patent/JPS50132395A/ja active Pending
- 1974-05-29 DE DE19742426148 patent/DE2426148A1/en not_active Withdrawn
- 1974-05-29 US US05/474,464 patent/US3976159A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
US3976159A (en) | 1976-08-24 |
GB1467328A (en) | 1977-03-16 |
FR2231871B1 (en) | 1976-05-07 |
FR2231871A1 (en) | 1974-12-27 |
DE2426148A1 (en) | 1974-12-19 |
JPS50132395A (en) | 1975-10-20 |
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